← The evidence ledger
Evidence row 2201723
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://industry-occupation-codes.x402tookit.com/code-crosswalk-hint
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 9d76617858156c96b017d914aaf9dbbe8135202de8ea0ed365a27b05508ec173
- Leaf
- 0x6a64aa78e25e4c633def2aa24497eb78c683914e5202a2b3aef34a2de11fd5bf
What was observed
{
"endpoints": [
[
"x402",
"https://industry-occupation-codes.x402tookit.com/code-crosswalk-hint"
]
],
"name": "Industry and Occupation Codes",
"owner_address": "0xb531320805c5bed1d46aeadcf4f008fdf172dbda",
"raw": {
"accepts": [
{
"amount": "30000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:8453",
"payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
"scheme": "exact"
},
{
"amount": "30000",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM",
"transactionVersions": [
0
]
},
"maxTimeoutSeconds": 300,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "DUPiupXtuox38dcGoXUKer5mAydCzmaHjrbQ66qeEm8s",
"scheme": "exact"
},
{
"amount": "30000",
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:137",
"payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
"scheme": "exact"
},
{
"amount": "30000",
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:42161",
"payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
"scheme": "exact"
}
],
"description": "Link a NAICS industry to its top SOC occupations, or a SOC occupation to its top industries, from the BLS employment matrix.",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"limit": 5,
"naics": "541511"
},
"type": "http"
},
"output": {
"example": {
"asOf": "2026-10-21T06:39:51.567Z",
"attribution": "Sources: US Census Bureau (NAICS 2022), US Bureau of Labor Statistics (SOC 2018; 2025-35 National Employment Matrix, employment in thousands), public domain, snapshot 2026-10-21. Not endorsed by eithe…",
"degraded": false,
"direction": "industry to occupations",
"disclaimer": "Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting.",
"industryEmployment2025Thousands": 2399.6,
"matchMode": "covered",
"matchedMatrixIndustries": [
{
"employment2025Thousands": 2399.6,
"matrixIndustryCode": "541500",
"naicsPrefixes": [
"5415"
],
"title": "Computer systems design and related services",
"type": "line item"
}
],
"matrixEdition": "BLS Employment Projections 2025-35 National Employment Matrix, employment in thousands of jobs (wage and salary plus self-employed)",
"naics": {
"code": "541511",
"title": "Custom Computer Programming Services"
},
"notChecked": [
"this is a statistical employment link, not a legal or official NAICS-SOC crosswalk (none is published)",
"industries finer than the BLS matrix groups (a 6-digit NAICS code is answered with its whole matrix group)",
"…2 more"
],
"occupationsWithJobs": 196,
"reasons": [
"NAICS 541511 is more detailed than the BLS matrix, so its numbers are for the whole matrix industry: 541500 Computer systems design and related services.",
"Share is the occupation's jobs divided by all jobs in the matched industries."
],
"source": "US Census Bureau NAICS 2022, BLS SOC 2018 and BLS 2025-35 Employment Matrix (public domain)",
"summary": "NAICS 541511 Custom Computer Programming Services: matrix industry 541500, 2,399.6 thousand jobs; top occupation Software developers (15-1252), 21.1% of jobs.",
"topOccupations": [
{
"employment2025Thousands": 505.8,
"shareOfIndustryEmploymentPct": 21.1,
"socCode": "15-1252",
"title": "Software developers"
},
{
"employment2025Thousands": 154.7,
"shareOfIndustryEmploymentPct": 6.4,
"socCode": "15-1232",
"title": "Computer user support specialists"
}
],
"verdict": "LINKED"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"limit": {
"description": "Rows 1 to 30 (default 10)",
"type": "integer"
},
"naics": {
"description": "NAICS 2022 code (2 to 6 digits) to list its top occupations; use this or soc",
"type": "string"
},
"soc": {
"description": "SOC 2018 code (detailed, broad, minor or major) to list its top industries; use this or naics",
"type": "string"
}
},
"required": [],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"asOf": {
"type": [
"null",
"string"
]
},
"attribution": {
"type": [
"null",
"string"
]
},
"degraded": {
"type": [
"boolean",
"null"
]
},
"direction": {
"type": [
"null",
"string"
]
},
"disclaimer": {
"type": [
"null",
"string"
]
},
"industryEmployment2025Thousands": {
"type": [
"null",
"number"
]
},
"matchMode": {
"type": [
"null",
"string"
]
},
"matchedMatrixIndustries": {
"items": {
"properties": {
"employment2025Thousands": {
"type": [
"null",
"number"
]
},
"matrixIndustryCode": {
"type": [
"null",
"string"
]
},
"naicsPrefixes": {
"items": {
"type": "string"
},
"type": [
"array",
"null"
]
},
"title": {
"type": [
"null",
"string"
]
},
"type": {
"type": [
"null",
"string"
]
}
},
"type": "object"
},
"type": [
"array",
"null"
]
},
"matrixEdition": {
"type": [
"null",
"string"
]
},
"naics": {
"properties": {
"code": {
"type": [
"null",
"string"
]
},
"title": {
"type": [
"null",
"string"
]
}
},
"type": [
"null",
"object"
]
},
"notChecked": {
"items": {
"type": "string"
},
"type": [
"array",
"null"
]
},
"occupationsWithJobs": {
"type": [
"null",
"number"
]
},
"reasons": {
"items": {
"type": "string"
},
"type": [
"array",
"null"
]
},
"source": {
"type": [
"null",
"string"
]
},
"summary": {
"type": [
"null",
"string"
]
},
"topOccupations": {
"items": {
"properties": {
"employment2025Thousands": {
"type": [
"null",
"number"
]
},
"shareOfIndustryEmploymentPct": {
"type": [
"null",
"number"
]
},
"socCode": {
"type": [
"null",
"string"
]
},
"title": {
"type": [
"null",
"string"
]
}
},
"type": "object"
},
"type": [
"array",
"null"
]
},
"verdict": {
"type": [
"null",
"string"
]
}
},
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"lastUpdated": "2026-11-01T23:29:09.177Z",
"quality": {
"l30DaysTotalCalls": 1,
"l30DaysUniquePayers": 1,
"lastCalledAt": "2026-11-01T23:29:08.916Z"
},
"resource": "https://industry-occupation-codes.x402tookit.com/code-crosswalk-hint",
"serviceName": "Industry and Occupation Codes",
"tags": [
"naics",
"soc",
"crosswalk",
"employment",
"bls"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Link a NAICS industry to its top SOC occupations, or a SOC occupation to its top industries, from the BLS employment matrix."
}What the leaf hashes
{"body":"9d76617858156c96b017d914aaf9dbbe8135202de8ea0ed365a27b05508ec173","id":2201723,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793646808011590,"prev":null,"subject":"x402_bazaar:https://industry-occupation-codes.x402tookit.com/code-crosswalk-hint","subject_kind":"source_record"}Proof
Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (444186 rows).
- 0x6a64b62779011ccf75003bde53e66e947399ffa7f1ad02942537f8d38cfdbbf0
- 0x82e1b9d7e40f9d30d31830360e3701180ae3946c6224640bb5ae6fc5115a4921
- 0x79736ddf94f039c2b76e5d8be704bc28400a3c8759384ea0b2f790a63a7df805
- 0x32785e4c5f8c69773914b9e79a975e7fd5f7151af922134681647645fd91385e
- 0x6a7e7066dd02cab21c92ecd9bb0ddfc20acd7b21f9ff4e9b83e7cab3cdb09716
- 0x6b402869930c6c3ee5bffce9bcab902d66397c96d93e35332ab121008b77e1bd
- 0x40bc360a499c66a7404ee1eced36ecd6443b138e7b85144ce215d42c45817e7b
- 0x548addc9ce69369dd007069593ebb5ad32ab9c09366839946e2f9ef5268dc8e2
- 0xec265765227317ab7bf9bb842ddd203dd9bc168699729f8a075327d3ada3aa71
- 0xa6c89bbf5158ecc556ebad7d848bc3a6c19f7f5d8c80582ef358920372e478a8
- 0x5560d00686b4a081e346c71baba0994558e82d29ddd1741bf70584055e3ec9db
- 0xb48ca1bd0f7d11b26354130c55fb0705def4c057f699f06b082b6cdf5cb448a2
- 0x2fd2d9cf947c79681f19cce7449a6b4b73c256ceadacecd526a729734fb1339d
- 0x197bc18a6b8126dd9b52133f001dca55646ad9292aafa98222498ec1746809a4
- 0x2cdc73dde4ed839d7482b6b91833e64bef56c7626db8439f3bbdfcffd2ae32a3
- 0x0e5696ae625571c52ddcd8dc09aa6c994b4ab38f2086df20d56f1f01c603e501
- 0xf9973981f80219d4f00fa9186b40a8144accc0c9875572fb79eaea312a21a187
- 0x4d205063c881c48edbbb37762a8d3bbb7444d4c42daa882f663a231893d25c35
- 0x365b161a4b68d750dcc4b3ecce1154a2163c87b08762079428e68f0ebb6a754e
- Day root
- 0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1
- Chained
- 0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2
- Published
- On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af